POSS Polystyrene Copolymers Reactivity and Control
Abstract
Nano-sized inorganic clusters(POSS) can be incorporated into polystyrene copolymers from 1-99 wt%. These POSS clusters cause increases to the thermal transitions and mechanical properties of the polymers they are copolymerized into. The POSS effect on the properties of analogous polymers shows a dependency on the type of alkyl group on the POSS cluster. A degree of control over molecular weight can be made using standard kinetic polystyrene parameters. High molecular weight is necessary to maintain good mechanical properties. Reactivity ratios show that styrene monomer has no preference for reaction with itself or with a POSS-styrene. A POSS-styrene monomer, however, is more likely to react with styrene than with itself. Therefore, a copolymer sequence should be close to random.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 28, 2003
- Accession Number
- ADA417297
Entities
People
- Brian E. Moore
- Rene Gonzalez
- Timothy Haddad